JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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Program: How to implement a static member interface?


Description:
A static member interface must me declared as a static member of top level class.
Static member interface can not have its name as top level class.

Code:
package com.java2novice.nested.classes;

public class MyStaticMemberInterfaceTest 
			implements MyStaticMemberInterface.MyStaticInterface{

	public void implementMe(){
		System.out.println("Hey I have implemented successfully!!!");
	}
	
	public static void main(String a[]){
		MyStaticMemberInterfaceTest msi = new MyStaticMemberInterfaceTest();
		msi.implementMe();
	}
}

class MyStaticMemberInterface{
	
	public static interface MyStaticInterface{
		public void implementMe();
	}
}

Output:
Hey I have implemented successfully!!!
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Java Nested Classes Sample Code Examples

  1. How to initialise or call a static member class?
  2. How to implement a static member interface?
  3. How to access top level class variables from static member classes?
  4. Give an example of basic non-static member class.
  5. How to initialise non-static member (local class) class?
Knowledge Centre
What is wrapper class?
Everything in java is an object, except primitives. Primitives are int, short, long, boolean, etc. Since they are not objects, they cannot return as objects, and collection of objects. To support this, java provides wrapper classes to move primitives to objects. Some of the wrapper classes are Integer, Long, Boolean, etc.
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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java is registered trademark of Oracle.
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